15=K(3)

Solution for 15=K(3) equation:

Simplifying
15 = K(3)

Reorder the terms for easier multiplication:
15 = 3K

Solving
15 = 3K

Solving for variable 'K'.

Move all terms containing K to the left, all other terms to the right.

Add '-3K' to each side of the equation.
15 + -3K = 3K + -3K

Combine like terms: 3K + -3K = 0
15 + -3K = 0

Add '-15' to each side of the equation.
15 + -15 + -3K = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -3K = 0 + -15
-3K = 0 + -15

Combine like terms: 0 + -15 = -15
-3K = -15

Divide each side by '-3'.
K = 5

Simplifying
K = 5